diff --git a/dist/esbuild-plugin.js b/dist/esbuild-plugin.js
index ed1e014..1f48a81 100644
--- a/dist/esbuild-plugin.js
+++ b/dist/esbuild-plugin.js
@@ -55,14 +55,13 @@ const hanamiEsbuild = (options) => {
                 //  To this:
                 //
                 // {
-                //   'public/assets/admin/app-ITGLRDE7.js': 'slices/admin/assets/js/app.js'
+                //   'public/assets/admin/app-ITGLRDE7.js': true
                 // }
                 function extractEsbuildCompiledEntrypoints(esbuildOutputs) {
                     const entryPoints = {};
                     for (const key in esbuildOutputs) {
-                        const output = esbuildOutputs[key];
-                        if (output.entryPoint) {
-                            entryPoints[key] = output.entryPoint;
+                        if (!key.endsWith(".map")) {
+                            entryPoints[key] = true;
                         }
                     }
                     return entryPoints;
diff --git a/src/esbuild-plugin.ts b/src/esbuild-plugin.ts
index dc9fa4a..896ef47 100644
--- a/src/esbuild-plugin.ts
+++ b/src/esbuild-plugin.ts
@@ -83,18 +83,16 @@ const hanamiEsbuild = (options: PluginOptions): Plugin => {
         //  To this:
         //
         // {
-        //   'public/assets/admin/app-ITGLRDE7.js': 'slices/admin/assets/js/app.js'
+        //   'public/assets/admin/app-ITGLRDE7.js': true
         // }
         function extractEsbuildCompiledEntrypoints(
           esbuildOutputs: Record<string, any>,
-        ): Record<string, string> {
-          const entryPoints: Record<string, string> = {};
+        ): Record<string, boolean> {
+          const entryPoints: Record<string, boolean> = {};
 
           for (const key in esbuildOutputs) {
-            const output = esbuildOutputs[key];
-
-            if (output.entryPoint) {
-              entryPoints[key] = output.entryPoint;
+            if (!key.endsWith(".map")) {
+              entryPoints[key] = true;
             }
           }
 
@@ -124,7 +122,7 @@ const hanamiEsbuild = (options: PluginOptions): Plugin => {
 
         const processAssetDirectory = (
           pattern: string,
-          compiledEntryPoints: Record<string, string>,
+          compiledEntryPoints: Record<string, boolean>,
           options: PluginOptions,
         ): string[][] => {
           const dirPath = path.dirname(pattern);
diff --git a/test/hanami-assets.test.ts b/test/hanami-assets.test.ts
index b7c8c9c..b626f73 100644
--- a/test/hanami-assets.test.ts
+++ b/test/hanami-assets.test.ts
@@ -11,6 +11,7 @@ const watchTimeout = 60000; // ms (60 seconds)
 // Helper function to create a test environment
 async function createTestEnvironment() {
   // Create temporary directories
+  await fs.ensureDir(path.join(dest, "app/assets/css"));
   await fs.ensureDir(path.join(dest, "app/assets/js"));
   await fs.ensureDir(path.join(dest, "app/assets/js/nested"));
   await fs.ensureDir(path.join(dest, "app/assets/images/nested"));
@@ -160,6 +161,35 @@ describe("hanami-assets", () => {
     });
   });
 
+  test("handles CSS", async () => {
+    const entryPoint = path.join(dest, "app/assets/js/app.js");
+    await fs.writeFile(entryPoint, 'import "../css/app.css";');
+    const cssFile = path.join(dest, "app/assets/css/app.css");
+    await fs.writeFile(cssFile, ".btn { background: #f00; }");
+
+    await assets.run({ root: dest, argv: ["--path=app", "--target=public/assets"] });
+
+    const entryPointExists = await fs.pathExists(path.join("public/assets/app-6PW7FGD5.js"));
+    expect(entryPointExists).toBe(true);
+    const cssExists = await fs.pathExists(path.join("public/assets/app-HYVEQYF6.css"));
+    expect(cssExists).toBe(true);
+
+    const manifestContent = await fs.readFile(
+      path.join(dest, "public/assets/assets.json"),
+      "utf-8",
+    );
+    const manifest = JSON.parse(manifestContent);
+
+    expect(manifest).toEqual({
+      "app.css": {
+        url: "/assets/app-HYVEQYF6.css",
+      },
+      "app.js": {
+        url: "/assets/app-6PW7FGD5.js",
+      },
+    });
+  })
+
   test("handles TypeScript", async () => {
     const entryPoint1 = path.join(dest, "app/assets/js/app.ts");
     await fs.writeFile(entryPoint1, "console.log('Hello from TS!');");